Thoughts on my Driveshaft pls

[JayM]

What do you guys think of my drive shaft? It's a 2017 that I bought Oct 2018 and put on 5500km last season. To me it seems like the bearing did spin but i'm not an expert. Bearing also doesn't really "feel" quite snug. Based on my calipers I have 1/128th clearance. Do I buy a new one or have someone weld and machine to a new bearing? I bought Loctite bearing mount and I have the BOP bearing lock but while I have it out I want to repair properly.

Appreciate the advice.

**Pictures coming, seems I can't just upload from my phone **

 

[JayM]

https://1drv.ms/u/s!AiJEPIEok0K5hZl7eL5WPy6JzROLzA?e=ZP0rdQ

https://1drv.ms/u/s!AiJEPIEok0K5hZl6CQ_Mtt3gHgrjvg?e=2kXIcg

https://1drv.ms/u/s!AiJEPIEok0K5hZl-g4_jEyKY_W4Ybw?e=k4lhDb

https://1drv.ms/u/s!AiJEPIEok0K5hZl8xjcvYLd8ZFjSOw?e=vdhmUU

 

[JayM]

Sorry, this forum is so frustrating to try and upload pictures from a phone, hopefully the links work or someone can help fix it. Love this place just the media handling is iffy.

 

[MrSled]

Sorry, this forum is so frustrating to try and upload pictures from a phone, hopefully the links work or someone can help fix it. Love this place just the media handling is iffy.

reduce images to 1024x768 with an app. Unless you have a latest iPhone update.

 

[JayM]

reduce images to 1024x768 with an app. Unless you have a latest iPhone update.

Yes just another app and twice the pics

 

[MrSled]

Yes just another app and twice the pics

https://ty4stroke.com/threads/cell-phone-and-pc-image-help.150640/

 

[MrSled]

With the new iPhone update it so easy. It reduces them for email and uploads. The phone makes them stupid big

 

[MrSled]

I embedded the images in the post.

 

[ClutchMaster]

Yes it has moved around some on the shaft. Hard to tell how loose it is but if you get the BOP expansion plug and install it I would bet it locks in place. If not you need a repair or new shaft. Your going to need the BOP lock with the new driveshaft anyway so see if it tightens up.

 

[JayM]

Yes it has moved around some on the shaft. Hard to tell how loose it is but if you get the BOP expansion plug and install it I would bet it locks in place. If not you need a repair or new shaft. Your going to need the BOP lock with the new driveshaft anyway so see if it tightens up.

OK I will likely just roll with a new bearing, I got the BOP lock today and then green Loctite. I'm surprised the BOP lock actually expands that shaft, I hadn't really looked at how it worked before ordering lol

 

[Turboflash]

The bearing is a 6009-2RS C3. The ID is 45 mm which is 1.77165". If I'm seeing the pic correctly, your caliper is showing 1 & 99/128 = 1.7734"
1.7734 - 1.7716 = .0018" difference. That is well beyond the tolerances bearings are made to (which are only a few .0001") so IMO, this bearing is toast. It has been worn by shaft spinning inside it.
The shaft pic shows the bearing journal is 1 & 49/64 = 1.7656". So, the bearing ID is 1.7734 and the shaft is 1.7656. That's .0078" clearance which is way too much. You'd want them to be within .001" of each other at the most! The shaft is banging around inside the bearing.
Bottom line IMO, both are toast. Need new shaft and new bearing (AND the wedgy thing from Travis at BOP).

Have fun!

 

[JayM]

I embedded the images in the post.

Thank you!

 

[JayM]

The bearing is a 6009-2RS C3. The ID is 45 mm which is 1.77165". If I'm seeing the pic correctly, your caliper is showing 1 & 99/128 = 1.7734"
1.7734 - 1.7716 = .0018" difference. That is well beyond the tolerances bearings are made to (which are only a few .0001") so IMO, this bearing is toast. It has been worn by shaft spinning inside it.
The shaft pic shows the bearing journal is 1 & 49/64 = 1.7656". So, the bearing ID is 1.7734 and the shaft is 1.7656. That's .0078" clearance which is way too much. You'd want them to be within .001" of each other at the most! The shaft is banging around inside the bearing.
Bottom line IMO, both are toast. Need new shaft and new bearing (AND the wedgy thing from Travis at BOP).

Have fun!

Are new shafts from yamaha going to be better? Should I find a machine shop to weld and machine instead?

 

[Pstn head]

The brake rotor where it mates up to the inner race may also be worn.
Plus you might still have warranty?

 

[SPM]

Are new shafts from yamaha going to be better? Should I find a machine shop to weld and machine instead?

I would do a new shaft and bearing and use the BOP wedgy also.